/* ==========================================================================
   Design System & Variables (Light & Friendly Theme)
   ========================================================================== */
:root {
  /* Colors */
  --bg-dark: #ffffff;
  --bg-dark-accent: #f8fafc;
  --bg-card: #ffffff;
  --bg-card-hover: #f0fdfa; /* Light mint background on hover */
  --border-color: #e2e8f0;
  --border-hover: rgba(5, 150, 105, 0.3); /* Forest Green glow */
  
  --text-main: #1e293b;
  --text-muted: #475569;
  --text-dim: #64748b;
  
  --primary: #059669; /* Forest Green */
  --primary-glow: rgba(5, 150, 105, 0.1);
  --secondary: #0284c7; /* Sky Blue */
  --secondary-glow: rgba(2, 132, 199, 0.1);
  --accent: #f97316; /* Apricot Orange */
  --accent-glow: rgba(249, 115, 22, 0.1);
  --accent-pink: #db2777;

  --grad-hero: linear-gradient(135deg, var(--secondary) 0%, var(--primary) 100%);
  --grad-accent: linear-gradient(135deg, var(--secondary) 0%, #4f46e5 100%);
  --grad-orange: linear-gradient(135deg, var(--accent) 0%, #f43f5e 100%);
  --grad-dark: linear-gradient(180deg, #ffffff 0%, #f0fdfa 100%);

  /* Typography */
  --font-sans: 'Plus Jakarta Sans', 'Noto Sans JP', sans-serif;
  
  /* Layout */
  --container-width: 1200px;
  --header-height: 80px;
  
  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ==========================================================================
   Reset & Base Styles
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-dark);
  background-image: var(--grad-dark);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-fast);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul {
  list-style: none;
}

.container {
  width: 90%;
  max-width: var(--container-width);
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

/* ==========================================================================
   Background Decorative Watercolor Shapes (Orbs)
   ========================================================================== */
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  z-index: 1;
  opacity: 0.12;
  pointer-events: none;
}

.orb-1 {
  width: 600px;
  height: 600px;
  background: var(--secondary);
  top: -200px;
  right: -100px;
  animation: float-orb 20s infinite alternate ease-in-out;
}

.orb-2 {
  width: 500px;
  height: 500px;
  background: var(--primary);
  top: 40%;
  left: -200px;
  animation: float-orb 25s infinite alternate-reverse ease-in-out;
}

.orb-3 {
  width: 450px;
  height: 450px;
  background: var(--accent);
  bottom: 5%;
  right: -150px;
  animation: float-orb 22s infinite alternate ease-in-out;
}

@keyframes float-orb {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(60px, 40px) scale(1.1); }
}

/* ==========================================================================
   UI Components: Friendly Cards, Buttons, Badges
   ========================================================================== */
.glass {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.03);
  transition: var(--transition-normal);
}

.glass:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  box-shadow: 0 15px 40px rgba(5, 150, 105, 0.06);
  transform: translateY(-2px);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 2.2rem;
  font-family: var(--font-sans);
  font-weight: 700;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: var(--transition-normal);
  font-size: 1rem;
}

.btn-primary {
  background: var(--grad-hero);
  color: #ffffff;
  box-shadow: 0 8px 25px rgba(2, 132, 199, 0.25);
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
  transition: 0.6s;
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(2, 132, 199, 0.4);
}

.btn-secondary {
  background: #ffffff;
  color: var(--text-main);
  border: 2px solid var(--border-color);
}

.btn-secondary:hover {
  background: var(--bg-dark-accent);
  border-color: var(--text-dim);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 1.05rem 2.6rem;
  font-size: 1.1rem;
}

.btn-sm {
  padding: 0.55rem 1.6rem;
  font-size: 0.85rem;
}

.btn-block {
  width: 100%;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 1rem;
  background: rgba(2, 132, 199, 0.06);
  border: 1px solid rgba(2, 132, 199, 0.18);
  border-radius: 50px;
  color: var(--secondary);
  font-weight: 700;
  font-size: 0.85rem;
}

.text-gradient {
  background: var(--grad-hero);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: var(--secondary);
}

/* ==========================================================================
   Header / Navigation
   ========================================================================== */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  transition: var(--transition-normal);
  border-bottom: 1px solid transparent;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

header.scrolled {
  height: 70px;
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--border-color);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
}

.header-container {
  width: 90%;
  max-width: var(--container-width);
  height: 100%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-icon {
  font-size: 1.8rem;
  background: var(--grad-hero);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-text {
  font-weight: 800;
  font-size: 1.45rem;
  letter-spacing: -0.5px;
  color: var(--text-main);
}

header nav ul {
  display: flex;
  gap: 2rem;
}

header nav a {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-muted);
}

header nav a:hover {
  color: var(--secondary);
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  background: transparent;
  border: none;
  cursor: pointer;
}

.mobile-menu-toggle span {
  width: 100%;
  height: 2px;
  background: var(--text-main);
  transition: var(--transition-fast);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  padding: 160px 0 100px;
  position: relative;
  overflow: hidden;
}

.hero-container {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 4rem;
  align-items: center;
}

.badge-container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: 3.5rem;
  line-height: 1.25;
  font-weight: 900;
  margin-bottom: 1.5rem;
  letter-spacing: -1px;
}

.hero-lead {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  max-width: 600px;
}

.hero-actions {
  display: flex;
  gap: 1.5rem;
}

.hero-visual {
  position: relative;
}

.visual-wrapper {
  position: relative;
  z-index: 2;
  border-radius: 24px;
}

.hero-img {
  border-radius: 24px;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.08);
  border: 4px solid #ffffff;
}

.visual-deco-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  z-index: 3;
  width: 200px;
  background: #ffffff;
  border: 1px solid var(--border-color);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
}

#hero-deco-card-1 {
  top: 10%;
  left: -40px;
  animation: hover-card-1 6s infinite ease-in-out;
}

#hero-deco-card-2 {
  bottom: 10%;
  right: -20px;
  animation: hover-card-2 8s infinite ease-in-out;
}

@keyframes hover-card-1 {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes hover-card-2 {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(10px); }
}

.deco-icon {
  width: 40px;
  height: 40px;
  background: rgba(2, 132, 199, 0.08);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--secondary);
  font-size: 1.2rem;
}

.deco-title {
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text-main);
}

.deco-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Section Common Layout
   ========================================================================== */
.section {
  padding: 100px 0;
  position: relative;
}

.section-header {
  margin-bottom: 4rem;
}

.section-tag {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
  letter-spacing: -0.5px;
}

.section-subtitle {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 700px;
  margin: 0 auto;
}

.text-center {
  text-align: center;
}

/* ==========================================================================
   Introduction Section (Philosophy)
   ========================================================================== */
.intro-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
}

.intro-card {
  padding: 3rem 2rem;
  text-align: center;
  background: #ffffff;
}

.intro-icon {
  font-size: 2.5rem;
  color: var(--primary);
  margin-bottom: 1.5rem;
}

.intro-card h3 {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.intro-text {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ==========================================================================
   Features Section (3の特徴)
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
}

.about-card {
  padding: 3rem;
  display: flex;
  flex-direction: column;
  background: #ffffff;
}

.card-icon-wrapper {
  width: 60px;
  height: 60px;
  background: var(--grad-hero);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  color: #ffffff;
  margin-bottom: 2rem;
  box-shadow: 0 8px 20px var(--secondary-glow);
}

.about-card h3 {
  font-size: 1.45rem;
  margin-bottom: 1.25rem;
  font-weight: 700;
}

.about-card p {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.card-highlight {
  padding-left: 1rem;
  border-left: 3px solid var(--primary);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-main);
  background: rgba(5, 150, 105, 0.04);
  padding: 0.75rem 1rem;
  border-radius: 0 8px 8px 0;
  margin-bottom: 1.5rem;
}

/* Vocabulary Infographic */
.vocabulary-infographic {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1.5rem;
  background: #f8fafc;
  border: 1px solid var(--border-color);
  padding: 1.25rem;
  border-radius: 12px;
}

.infographic-column {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.info-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
  margin-bottom: 0.25rem;
}

.info-word {
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.35rem 0.60rem;
  background: rgba(2, 132, 199, 0.06);
  border: 1px solid rgba(2, 132, 199, 0.15);
  color: var(--secondary);
  border-radius: 6px;
  text-align: center;
}

.infographic-column:first-child .info-word {
  background: rgba(5, 150, 105, 0.06);
  border-color: rgba(5, 150, 105, 0.15);
  color: var(--primary);
}

/* ==========================================================================
   Growth Principle Section
   ========================================================================== */
.principle-content-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 4rem;
  align-items: center;
}

.story-column {
  padding: 3rem;
  background: #ffffff;
}

.story-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.story-icon {
  width: 45px;
  height: 45px;
  background: rgba(2, 132, 199, 0.08);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  color: var(--secondary);
}

.story-column h3 {
  font-size: 1.35rem;
  font-weight: 700;
}

.story-text {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
  line-height: 1.7;
}

.story-text strong {
  color: var(--secondary);
}

.story-footer-note {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
  font-size: 0.85rem;
  color: var(--text-muted);
  display: flex;
  gap: 0.5rem;
}

.story-footer-note i {
  color: var(--secondary);
  margin-top: 0.15rem;
}

.system-column h3 {
  font-size: 1.5rem;
  margin-bottom: 2rem;
  font-weight: 700;
}

.step-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  position: relative;
}

/* Vertical connector line */
.step-list::before {
  content: '';
  position: absolute;
  top: 30px;
  left: 25px;
  width: 2px;
  height: calc(100% - 60px);
  background: linear-gradient(180deg, var(--secondary) 0%, var(--accent) 100%);
  opacity: 0.2;
}

.step-item {
  display: flex;
  gap: 1.5rem;
  padding: 1.5rem;
  align-items: flex-start;
  background: #ffffff;
}

.step-num {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: #ffffff;
  border: 2px solid var(--secondary);
  color: var(--secondary);
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 0.25rem;
  box-shadow: 0 0 10px rgba(2, 132, 199, 0.1);
}

.step-item:nth-child(2) .step-num {
  border-color: #4f46e5;
  color: #4f46e5;
}
.step-item:nth-child(3) .step-num {
  border-color: var(--accent);
  color: var(--accent);
}
.step-item:nth-child(4) .step-num {
  border-color: var(--accent-pink);
  color: var(--accent-pink);
}

.step-info h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.step-info p {
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* ==========================================================================
   Schedule (Timeline Day Switcher) Section
   ========================================================================== */
.schedule-tab-nav {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.tab-btn {
  background: #ffffff;
  border: 1px solid var(--border-color);
  padding: 1.2rem 2rem;
  border-radius: 16px;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition-normal);
  font-family: var(--font-sans);
  text-align: left;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  min-width: 220px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.01);
}

.tab-btn span {
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-top: 0.25rem;
}

.tab-btn.active {
  background: var(--bg-card-hover);
  border-color: var(--primary);
  color: var(--primary);
  box-shadow: 0 5px 15px rgba(5, 150, 105, 0.08);
}

.tab-btn.active span {
  color: var(--text-muted);
}

.tab-btn:hover:not(.active) {
  border-color: var(--text-dim);
  background: var(--bg-dark-accent);
}

.schedule-tab-content {
  padding: 3.5rem;
  background: #ffffff;
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
  animation: fadeIn 0.5s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.panel-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 4rem;
}

.day-label {
  display: inline-block;
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--primary);
  background: rgba(5, 150, 105, 0.08);
  padding: 0.25rem 0.8rem;
  border-radius: 4px;
  margin-bottom: 1rem;
}

.panel-info h3 {
  font-size: 2rem;
  margin-bottom: 1.5rem;
}

.panel-desc {
  color: var(--text-muted);
  font-size: 1.1rem;
  margin-bottom: 2rem;
  line-height: 1.7;
}

.key-vocabulary h4 {
  font-size: 1rem;
  color: var(--text-main);
  margin-bottom: 0.75rem;
}

.vocab-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.vocab-tags span {
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.4rem 0.8rem;
  background: rgba(5, 150, 105, 0.05);
  border: 1px solid rgba(5, 150, 105, 0.15);
  color: var(--primary);
  border-radius: 8px;
}

.panel-activity {
  background: var(--bg-dark-accent);
  border: 1px solid var(--border-color);
  padding: 2.5rem;
  border-radius: 16px;
  height: fit-content;
}

.panel-activity h4 {
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.75rem;
  color: var(--text-main);
}

.panel-activity ul {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.panel-activity li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.panel-activity li i {
  color: var(--primary);
  margin-top: 0.25rem;
}

/* ==========================================================================
   Themes Catalog Section
   ========================================================================== */
.themes-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.theme-card {
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  background: #ffffff;
}

.theme-card:hover {
  border-color: rgba(249, 115, 22, 0.25);
  box-shadow: 0 12px 30px rgba(249, 115, 22, 0.04);
}

.theme-badge {
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 1rem;
  text-transform: uppercase;
}

.theme-title {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  font-weight: 700;
}

.theme-desc {
  color: var(--text-muted);
  font-size: 0.875rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.theme-footer {
  border-top: 1px solid var(--border-color);
  padding-top: 1rem;
}

.vocab-label {
  font-size: 0.75rem;
  color: var(--text-dim);
  display: block;
  margin-bottom: 0.5rem;
}

.theme-vocabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.theme-vocabs span {
  font-size: 0.7rem;
  font-weight: 600;
  background: rgba(249, 115, 22, 0.05);
  border: 1px solid rgba(249, 115, 22, 0.15);
  color: var(--accent);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
}

/* ==========================================================================
   FAQ Section
   ========================================================================== */
.faq-accordion {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.faq-item {
  border-radius: 16px;
  overflow: hidden;
  background: #ffffff;
}

.faq-item:hover {
  border-color: rgba(2, 132, 199, 0.25);
}

.faq-question {
  width: 100%;
  background: transparent;
  border: none;
  padding: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  text-align: left;
}

.faq-question i {
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: transform var(--transition-normal);
}

.faq-item.active {
  background: #ffffff;
  border-color: var(--secondary);
  box-shadow: 0 8px 25px rgba(2, 132, 199, 0.05);
}

.faq-item.active .faq-question i {
  transform: rotate(180deg);
  color: var(--secondary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease-out, padding 0.4s ease-out;
  padding: 0 1.5rem;
}

.faq-item.active .faq-answer {
  max-height: 250px;
  padding-bottom: 1.5rem;
  padding-top: 0;
}

.faq-answer p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ==========================================================================
   CTA Section (Forms / Contact)
   ========================================================================== */
.cta-section {
  padding: 80px 0 120px;
}

.cta-container {
  padding: 5rem;
  border-radius: 32px;
  background: linear-gradient(135deg, #ffffff 0%, rgba(2, 132, 199, 0.02) 100%);
  border: 1px solid var(--border-color);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.03);
}

.cta-content-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.cta-intro h2 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  line-height: 1.3;
}

.cta-intro p {
  color: var(--text-muted);
  font-size: 1.1rem;
  margin-bottom: 2.5rem;
  line-height: 1.7;
}

.cta-features {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.cta-features div {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
}

.cta-features i {
  color: var(--primary);
  font-size: 1.25rem;
}

/* Friendly Light Form */
.cta-form-wrapper {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 2.5rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.02);
}

.form-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  text-align: center;
  color: var(--text-main);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.form-group label .required {
  color: var(--accent-pink);
  margin-left: 0.25rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.85rem 1.2rem;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  transition: var(--transition-fast);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-dim);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  background: #ffffff;
  border-color: var(--secondary);
  box-shadow: 0 0 10px rgba(2, 132, 199, 0.15);
}

.form-inline {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 1rem;
}

.form-group select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23475569' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><polyline points='6 9 12 15 18 9'></polyline></svg>");
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 16px;
  padding-right: 2rem;
}

.form-group select option {
  background-color: #ffffff;
  color: var(--text-main);
}

.form-lead {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-align: center;
  margin-bottom: 1.75rem;
  line-height: 1.7;
}

.field-note {
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-top: 0.4rem;
}

/* Radio choice groups */
.choice-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.choice {
  flex: 1 1 0;
  min-width: 130px;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: var(--transition-fast);
  margin: 0;
}

.choice:hover {
  border-color: var(--secondary);
  background: var(--bg-card-hover);
}

.choice input {
  width: auto;
  accent-color: var(--primary);
  cursor: pointer;
}

.choice:has(input:checked) {
  border-color: var(--primary);
  background: rgba(5, 150, 105, 0.06);
  color: var(--primary);
}

/* Consent box */
.consent-box {
  background: var(--bg-dark-accent);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.1rem 1.25rem;
  margin-bottom: 1.5rem;
}

.consent {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  margin: 0;
}

.consent input {
  width: auto;
  margin-top: 0.15rem;
  accent-color: var(--primary);
  cursor: pointer;
}

.consent a {
  color: var(--secondary);
  text-decoration: underline;
}

.terms-details {
  margin-top: 0.75rem;
}

.terms-details summary {
  font-size: 0.8rem;
  color: var(--secondary);
  cursor: pointer;
  font-weight: 600;
}

.terms-body {
  margin-top: 0.6rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.terms-body ul {
  list-style: disc;
  padding-left: 1.2rem;
  margin-top: 0.4rem;
}

.form-status-msg {
  margin-top: 1rem;
  font-size: 0.9rem;
  text-align: center;
  font-weight: 600;
  transition: var(--transition-fast);
}

.form-status-msg.success {
  color: var(--primary);
}

.form-status-msg.error {
  color: var(--accent-pink);
}

/* ==========================================================================
   Footer Section
   ========================================================================== */
footer {
  background: #f8fafc;
  border-top: 1px solid var(--border-color);
  padding: 50px 0;
  color: var(--text-muted);
}

.footer-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 2rem;
}

.footer-info p {
  color: var(--text-dim);
  font-size: 0.85rem;
  margin-top: 0.5rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-logo .logo-text {
  color: var(--text-main);
}

.footer-links ul {
  display: flex;
  gap: 2rem;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 600;
}

.footer-links a:hover {
  color: var(--secondary);
}

.copyright {
  width: 100%;
  text-align: center;
  border-top: 1px solid var(--border-color);
  padding-top: 2rem;
  color: var(--text-dim);
  font-size: 0.8rem;
}

/* ==========================================================================
   Scroll Reveal & Animation Classes
   ========================================================================== */
.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.8s var(--transition-slow) forwards;
}

.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.scroll-reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s var(--transition-slow), transform 0.8s var(--transition-slow);
}

.scroll-reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.8s var(--transition-slow), transform 0.8s var(--transition-slow);
}

.scroll-reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.8s var(--transition-slow), transform 0.8s var(--transition-slow);
}

.scroll-reveal-up {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s var(--transition-slow), transform 0.8s var(--transition-slow);
}

.scroll-reveal.active,
.scroll-reveal-left.active,
.scroll-reveal-right.active,
.scroll-reveal-up.active {
  opacity: 1;
  transform: translate(0, 0);
}

/* ==========================================================================
   Schedule Hybrid Flow Timeline
   ========================================================================== */
.schedule-flow {
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3.5rem;
}

.flow-step {
  flex: 1 1 0;
  max-width: 320px;
  padding: 1.75rem 1.5rem;
  border-radius: 18px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
}

.flow-step-home {
  background: linear-gradient(135deg, rgba(249, 115, 22, 0.10), rgba(219, 39, 119, 0.08));
  border: 1px dashed rgba(249, 115, 22, 0.5);
}

.flow-badge {
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  color: var(--primary);
  background: rgba(5, 150, 105, 0.1);
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  margin-bottom: 0.9rem;
}

.flow-badge-home {
  color: var(--accent);
  background: rgba(249, 115, 22, 0.12);
}

.flow-days {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-main);
}

.flow-days i {
  color: var(--accent);
  margin-right: 0.3rem;
}

.flow-date {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--secondary);
  margin: 0.2rem 0 0.7rem;
}

.flow-step-home .flow-date {
  color: var(--accent-pink);
}

.flow-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.flow-arrow {
  display: flex;
  align-items: center;
  color: var(--text-dim);
  font-size: 1.4rem;
  flex: 0 0 auto;
}

/* ==========================================================================
   Course Outline Section
   ========================================================================== */
.outline-card {
  max-width: 820px;
  margin: 0 auto;
  padding: 1rem 2.5rem;
  border-radius: 24px;
}

.outline-row {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 1.5rem;
  align-items: start;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border-color);
}

.outline-row:last-child {
  border-bottom: none;
}

.outline-row dt {
  font-weight: 800;
  color: var(--text-main);
  font-size: 1rem;
}

.outline-row dt i {
  color: var(--primary);
  margin-right: 0.5rem;
  width: 1.2em;
  text-align: center;
}

.outline-row dd {
  color: var(--text-muted);
  font-size: 1.02rem;
  line-height: 1.7;
}

.outline-row-highlight {
  background: rgba(5, 150, 105, 0.04);
  border-radius: 14px;
  padding: 1.5rem;
  margin: 0.5rem 0;
  border-bottom: none;
}

.outline-price {
  font-size: 2.1rem;
  font-weight: 900;
  color: var(--primary);
}

.outline-note {
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-left: 0.4rem;
}

.outline-phase {
  display: block;
  margin-bottom: 0.4rem;
}

.outline-phase b {
  color: var(--text-main);
  margin-right: 0.5rem;
}

.outline-phase-home,
.outline-phase-home b {
  color: var(--accent);
}

/* ==========================================================================
   Responsive Design / Media Queries
   ========================================================================== */
@media (max-width: 1024px) {
  .schedule-flow {
    flex-direction: column;
    align-items: center;
  }

  .flow-step {
    max-width: 480px;
    width: 100%;
  }

  .flow-arrow {
    transform: rotate(90deg);
  }

  .hero-container {
    grid-template-columns: 1fr;
    gap: 3rem;
    text-align: center;
  }
  
  .badge-container {
    justify-content: center;
  }
  
  .hero-actions {
    justify-content: center;
  }
  
  .hero-visual {
    max-width: 500px;
    margin: 0 auto;
  }
  
  #hero-deco-card-1 {
    left: -20px;
  }
  
  .intro-grid {
    grid-template-columns: 1fr;
    max-width: 600px;
    margin: 0 auto;
  }
  
  .about-grid {
    grid-template-columns: 1fr;
  }
  
  .about-card {
    padding: 2rem;
  }
  
  .principle-content-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .step-list::before {
    left: 20px;
  }
  
  .step-item {
    padding: 1.25rem;
  }
  
  .themes-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .panel-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .cta-content-wrapper {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 70px;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .themes-grid {
    grid-template-columns: 1fr;
  }
  
  .schedule-tab-content {
    padding: 2rem;
  }
  
  .panel-info h3 {
    font-size: 1.5rem;
  }
  
  .cta-container {
    padding: 3rem 1.5rem;
  }
  
  .cta-intro h2 {
    font-size: 2rem;
  }

  .outline-card {
    padding: 0.5rem 1.5rem;
  }

  .outline-row {
    grid-template-columns: 1fr;
    gap: 0.4rem;
    padding: 1.2rem 0;
  }

  .outline-price {
    font-size: 1.8rem;
  }

  .mobile-menu-toggle {
    display: flex;
  }
  
  header nav {
    position: fixed;
    top: var(--header-height);
    left: 100%;
    width: 100%;
    height: calc(100vh - var(--header-height));
    background: #ffffff;
    padding: 3rem 2rem;
    transition: var(--transition-normal);
  }
  
  header nav.active {
    left: 0;
  }
  
  header nav ul {
    flex-direction: column;
    gap: 2rem;
    align-items: center;
  }
  
  header nav a {
    font-size: 1.2rem;
  }
  
  .header-cta {
    display: none;
  }
  
  .mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
  }
}